We made autograph books for our boys, and they love them! When we went 3 years ago, I bought plain white mini photo albums, the size that hold 1 4x6 photo per page. We used colored index cards for the autographs, and glued clip art and stickers to them. Once signed, they went on the right hand side, and a photo of ds with the character went on the left. For the cover, I just used print shop and clip art to make a page with their name and the date of our trip, and a disney pic, then covered it with clear contact paper. You could probably make these a lot fancier with all of the cool scrapbooking supplies available now. The only downside to these was trying to pull out the correct card while holding onto a ds that wants to run instead of stand in line!

My oldest was only 3 1/2 that trip, but he still remembers things about it when he looks at his book. He also added his postcards and other paper-type treasures to the book, and gets it out to look at and talk about every few weeks.
For our upcoming trip, we found inexpensive spiralbound index card books (3/1.00). They have a colored plastic cover with a clear pocket. We made a picture with characters and the trip date for the pocket with the Disney magic artist deluxe cd. We have a digital camera now, and I plan on printing pics of them with the characters to glue in on the opposite page from the signatures. We might fancy them up with stencil borders and stickers, cut the edges of the picture and cards with the decorator scissors, it's up to the boys how much they want to do. I'm hoping these will be easier to use, because they're smaller (3.5x5) and not loose papers like we used last time.
I highly recommend making your own book. With all the computer art programs, scrapbook supplies, stickers, digital cameras and whatnot, it's pretty easy to make something cool even if you're not artistic. The big plus is, they really had fun making them, and loved having their own 'book' when the trip was through.
